TM 5-3805-281-24-2
Hydraulic System
10. Install parts into housing.
IMPORTANT: The housing (17) and spools (19) are
replaced as an assembly because
33
Temporarily install M8-1.25 cap screws to hold
the spools are select fitted to bores
3360
plate (4) on housing.
in housing.
79
11. Install pistons (18), small end first, into the spools.
Some of the parts from ports 1 and 3
are different than parts from ports 2
12. Install plate (14). Tighten cap screw (13).
and 4. Parts for each port must be
kept together and installed into the
Bottom Plate-to-Housing Cap Screw--Specification
same port from which it was
removed. The port numbers are
Torque....................................................................... 49 Nm (36 lb-ft)
stamped on the housing.
13. Apply thread lock and sealer (medium strength) to
2. Temporarily install M8-1.25 cap screws to hold
threads on one end of U-joint (3).
plate (4) on housing.
Tighten U-joint into housing.
Remove U-joint (3).
U-Joint-to-Housing--Specification
3. Remove cap screw (13).
Torque.................................................................... 24 Nm (216 lb-in.)
Pull plate (14) from housing using a M16-2.0 cap
screw.
Remove temporarily installed cap screws.
4. Remove pistons (18). These pistons must be
14. Apply grease to end of each pusher (8 and 11)
removed first and installed last.
and to joint of U-joint.
5. Slowly loosen cap screws to release spring force of
15. Install cam on U-joint. Adjust clearance between
return springs on plate.
pushers and cam to specification.
Cam-to-Pushers--Specification
6. Remove parts from housing. Remember to keep
parts removed from each port together. Identify
Clearance.................................................. 0--0.20 mm (0--0.008 in.)
each group of parts by port numbers stamped on
housing.
Hold cam and tighten coupling (1).
7. Repair or replace parts as necessary.
Coupling-to-Cam and U-Joint--Specification
8. Install same number of shims (21) on each spool
Torque....................................................................... 78 Nm (58 lb-ft)
(19) as were removed.
Push balance springs (23 and 25) down and then
install spacer (retainer) (20) so that recess side is
against spring.
9. Apply grease to oil seals (5).
TX,33,GG2416 1909SEP983/3
19-113